四川盆地西部富钾卤水水文地球化学特征及其成因意义探讨

Hydrogeochemical Features of K-Rich Brine And Its Genetic Significance in West Sichuan Basin

中文关键词:  卤水 富钾 钾盐 水文地球化学 四川盆地

英文关键词:Hydrogeochemistry,Paleosedimentary water,Metamorphic evolution,Dissolution of potassium minerals,K-rich brtine,Industrial chemicals water,Sichuan basin.

中文摘要:

      四川盆地西部钾卤水以深层卤水形成赋存于地下４０００余ｍ的中三叠统雷口坡组四段盐系的碳酸盐岩储层中。富钾卤水与海水不同浓缩阶段相比，本文为四川盆地固液态找钾提供了有价值的线索。

英文摘要:

      The K-rich brine in west sichuan basin, as deep brine at a depth of more than 400m, is hosted by the evaporite-bearing carbonate reservoir in the 4 th Member of Leikoupo Formation of Middle Triassic (L2L4). It is high-quality water of insustrial chemicals. The content of k in the K-rich brine, consisting of liquid potash mineral resources, is exceedingly high compared with the sea water in the different concentration stages, and the Br-, I-, B(3 ), Li and others in it exceed the comprehensive utilization pay grade. The K-rich brine is caused by metagenesis and dissolution olution of the early-formed potassium minerals, having the signhficeance for searching for solid and liquid potash mineral resources. This paper provides valuble leads for searching Sichuan basin for boath solid and liquid potash mineral resources.